#' @seealso
#' * [Dictionary][mlr3misc::Dictionary] of [Learners][mlr3::Learner]: [mlr3::mlr_learners].
#' * `as.data.table(mlr_learners)` for a table of available [Learners][mlr3::Learner] in the running session (depending on the loaded packages).
#' * Chapter in the [mlr3book](https://mlr3book.mlr-org.com/): \url{https://mlr3book.mlr-org.com/basics.html#learners}
#' * \CRANpkg{mlr3learners} for a selection of recommended learners.
#' * \CRANpkg{mlr3cluster} for unsupervised clustering learners.
#' * \CRANpkg{mlr3pipelines} to combine learners with pre- and postprocessing steps.
#' * \CRANpkg{mlr3tuning} for tuning of hyperparameters, \CRANpkg{mlr3tuningspaces} for established default tuning spaces.
